mke1963:
Visitor centre at Sanlongsha Dunhuang Yardan Formations
mke1963:
Gateway at Sanlongsha Dunhuang Yardan Formations
mke1963:
Gobi and Mazongshan in Hekong area
mke1963:
Gobi and Mazongshan in Hekong area
mke1963:
Gateway at Sanlongsha Dunhuang Yardan Formations
mke1963:
Gateway at Sanlongsha Dunhuang Yardan Formations
mke1963:
Sanlongsha Yardan Formations
mke1963:
Sanlongsha Yardan Formations
mke1963:
Kumtag Shamo and smaller yardan features
mke1963:
Sanlongsha Yardan Formations